small fontanel

例句：

1. 1.The baby's small fontanel is swollen and tender to the touch.
   婴儿的小囟门肿胀且触感柔软。
2. 2.Doctors often examine the fontanels of newborns to check for signs of infection.
   医生经常检查新生儿的囟门，以检查是否有感染的迹象。
3. 3.During a child's first year, the fontanels can be seen as they develop and fill in.
   在孩子出生后的头一年内，可以观察到囟门随着发育而出现并逐渐闭合。